To reproduce:
  1. Run the attached program which creates a webview and loads the page: http://v8.googlecode.com/svn/data/benchmarks/v7/run.html
  2. Wait for the benchmark to finish running
  3. Right click on the page and choose "Reload page" from the context menu.
On my machine, after reload, the jvm always crashes halfway into the second run of the test.
Attached sample program and crash log output.